GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Air Cleaner

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The intake air system provides clean air to the engine, optimizes airflow, and reduces unwanted induction noise. The intake air system consists of an air cleaner assembly, resonator assemblies and hoses. A flat air filter element provides maximum air filtration with minimum flow restriction. The main component of the air intake system is the air cleaner assembly. The air cleaner assembly houses the air cleaner element that removes potential engine contaminants, particularly abrasive types. The air cleaner housing and ducts are designed to allow the maximum airflow possible with a minimum of noise, and to reduce the potential for water ingestion into the engine.

If an engine maintenance procedure requires the temporary removal of the air cleaner, remove it; otherwise, never run the engine without it. The air filter should be replaced every 30,000 miles (50,000 km).

REMOVAL & INSTALLATION





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Fig. Before any work can be done of the left side of the engine compartment, it is necessary to remove the strut rod. Remove the bolt at the radiator frame



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Fig. Loosen the bolt on the other end of the rod at the strut housing. Now the rod can be moved out of the way allowing access to the components

Locate the air cleaner in the engine compartment. Inspect the flexible air intake ducting for cracks and tears. If the ducting is torn it should be replaced.

The air cleaner element may be replaced easily.

  1. Remove or disconnect the intake air temperature (IAT) sensor, if equipped and mounted in the air cleaner housing.
  2.  
  3. Loosen the intake air duct clamp and remove the air duct as necessary.
  4.  
  5. Disengage the fasteners securing the top of the air cleaner.
  6.  


NOTE
Some fasteners are clips, some are screws, depending on the vehicle configuration.

  1. Carefully tilt the air filter cover back to expose the element.
  2.  
  3. Remove the air filter element.
  4.  
  5. Wipe out the housing with a clean rag.
  6.  



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Fig. Loosen the screw on the cold air intake hose clamp



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Fig. Slide the hose off the outlet tube of the air cleaner box



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Fig. Release the fasteners holding the top of the air cleaner box and remove the top of the box



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Fig. Grasp the air filter element and . . .



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Fig. . . . lift it out of the air cleaner box



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Fig. Clean the filter box of any dirt and debris before replacing the element

To install:

  1. Position the air filter element in the housing, make sure it seats properly.
  2.  
  3. Install the air cleaner cover. Connect the intake air duct and tighten the clamp.
  4.  
  5. Install the IAT sensor, if removed, or reconnect as necessary.
  6.  
  7. Install the air cleaner fasteners, and tighten as necessary.
  8.  



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Fig. Early model air intake system



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Fig. Removing the center nut of the upper air cleaner housing-early model



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Fig. Removing the air cleaner-early model

 
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